BC5CDR:1500 PubMed articles with 4409 annotated chemicals, 5818 diseases and 3116 chemical-disease interactions (named entity recognition)
BioCreative V: BC5CDR corpus consists of 1500 PubMed articles with 4409 annotated chemicals, 5818 diseases and 3116 chemical-disease interactions.
BioRxiv XML - Bulk access to the full text of bioRxiv articles for the purposes of text and data mining (TDM) is available via a dedicated Amazon S3 resource.
Elsevier Corpus: This is a corpus of 40k (40,001) open access (OA) CC-BY articles from across Elsevier’s journals represent the first cross-discipline research of data at this scale to support NLP and ML research.
Europe PMC - Bulk download of full text and SI of > 5 million articles.
MedRxiv XML - Text and data mining is possible via dedicated Amazon S3 resource.
NLM literature archive: NLM LitArch (NLM Literature Archive) is a digital archive for books, documents, and articles in the fields of life science, medicine, and healthcare at the National Institutes of Health. Also accessible via NCBI bookshelf. See also the NLMChem, a manually annotated full-text resource on chemicals in the biomedical literature. It contains 150 full-text journal articles selected both to be rich in chemical mentions and for articles where human annotation was expected to be most valuable. However, I saw NLM literature archive already on the list but wasn't sure if it included this dataset
OpenStax Free textbooks, including Chemistry 2e, which is released under CC-BY 4.0.
PubChemSTM: 281K chemical structure and text pairs
PubMedQA: answer research questions with yes/no/maybe using abstracts (1k expert labeled, 61.2k unlabeled and 211.3k artificially generated QA instances).
S2ORC: The Semantic Scholar Open Research Corpus. 81.1M English-language academic papers spanning many academic disciplines largest publicly-available collection of machine-readable academic text). Released under CC BY-NC 4.0.
structures
COCONUT: is an open source project for Natural Products (NPs) storage, search and analysis.
nmrshiftdb2: is database for organic structures and their nuclear magnetic resonance (NMR) spectra.
zinc20: ZINC20 library prepared for Deep Docking-accelerated virtual screening
zinc22: commercially-available compounds for virtual screening
molecular activity prediction benchmark datsets
MPCD: a benchmark for molecular activty prediction, including both 9 Low-sample size and narrow-scaffold inhibitors datasets(LSSNS) and 30 Higher-sample size and mixed-scaffold inhibitor datasets(HSSMS), each dataset is visulised by TMAP
MoleculeACE: a benchmark (30 HSSMS datasets in MPCD) for evaluating the predictive performance on activity cliff compounds of machine learning models.
ml structure-property benchmark datasets
ACNet: a benchmark for Activity Cliff Prediction, 400K Matched Molecular Pairs (MMPs) against 190 targets, including over 20K MMP-cliffs and 380K non-AC MMPs from ChEMBL (version 28).
Aquasoldb: Curation of nine open source datasets on aqueous solubility. The authors also assigned reliability groups.
BigSolDB 2.0: Molecular solubility in organic solvents and water in a wide range of temperatures. It contains 103944 experimentally measured solubility values of 1448 organic compounds in 213 solvents reported in the 1595 literature peer-reviewed articles. Initially BigSolDB, posted in this preprint. Recently (2025), updated to BigSolDB 2.0, published in Scientific Data.
BindingDB: molecular recognition database, contains 2.6M data for 1.1M Compounds and 8.10K Targets (Feb 2023)
ESol: Water solubility data(log solubility in mols per litre) for common organic small molecules.
Flashpoint: Sun et al. collected a dataset of the flashpoints of 10575 molecules from academic papers, the Gelest chemical catalogue, the DIPPR database, Lange's Handbook of Chemistry, the Hazardous Chemicals Handbook, and the PubChem database.
FreeSolv: Experimental and Calculated Small Molecule Hydration Free Energies
Harvard OPV: "experimental photovoltaic data from the literature, and corresponding quantum-chemical calculations performed over a range of geometries, each with quantum chemical results using a variety of density functionals and basis sets"
Target identification data
Open Targets: is a large-scale resource that uses human genetics and genomics data for systematic drug target identification and prioritization.
Probes & Drugs Portal: is an interactive, open data resource for chemical biology. Overview of libraries of bioactive compounds (e.g., ChEMBL, Guide to PHARMACOLOGY), including commercial screening libraries.
Pharmacology & ADME & Metabolism
SIDER dataset: The SIDER Side Effect Resource represents an effort to aggregate dispersed public information on side effects. As there is no such resource exist in machine-readable form despite the importance of research on drugs and their effects. Creation of this resource was is related to paper (Campillos, Kuhn et al., Science,
Lipophilicty: Experimental results of octanol/water distribution coefficient(logD at pH 7.4).
MD simulated monomer properties: density, cohesive energy, thermal expansion, heat of vaporization, compressibility, radius of gyration, glass transition, and diffusion constant for 410 monomers
MoleculeNet - Benchmark suite that contains multiple datasets listed here
oechem: On Feb 17 2023 OCHEM contained 3774118 records for 689 properties (with at least 50 records) collected from 20609 sources (user is granted a Creative Commons CC-BY (version 4.0) license to data submitted)
Papyrus: A large scale curated dataset aimed at bioactivity predictions. Contains multiple large publicly available datasets such as ChEMBL and ExCAPE-DB combined with smaller datasets.
SolProp: Database of 1 million solvent/solute COSMO-RS calculations and 10145 experimental solvation free energies (originally published as part of this paper).
SOMAS: Experimental and calculated solubilities for small molecules. Originally proposed for the design of redox-flow batteries.
Therapeutic Data Commons: ML tasks that cover small molecules and biologics, including antibodies, peptides, miRNAs, and gene editing therapies. Original data can be found here.
ThermoML Archive: experimental thermophysical and thermochemical property data (in ThermoML XML format)
LIT-PCBA: A dataset for virtual screening and machine learning. It contain 15 target sets, 7761 actives and 382674 unique inactives selected from high-confidence PubChem Bioassay data.